Fintek iCOOL - Page 20

9.1 Main technical index
PCB h ld t th f ll i i t
9. Description of software operation
PCB
s
h
ou
ld
mee
t
th
e
f
o
ll
ow
i
ng requ
i
remen
t
s:
• Measured from the receiverˈreceiving distance of remote control should 8mˈreceiving
ang
le60econe angle˗
• Discrepancy of temperature controlf1ć˗
• Discrepancy of time control5min/24h˗
• Discrepancy of indoor PG fan speed˖f10rpm˗
Rd l
AC230
f
20%
0H
•
R
ate
d
power supp
l
y˖
AC230
f
20%
ˈ5
0H
z˗
• PCB should conform to
RoHS.
9.2 Definition
•RT˖room temperature.
•IPT˖indoor coil temperatur
e.
•ST˖setting temperatureˈrange 1830ć
•OPT˖outdoor coil temperature.
• NTC data˖R25=5.0Kȍf1% B25/50=3470f
1%
9.3 Mode introduction
931Automode
9
.
3
.
1
Auto
mode
After running the unit by ON/OFF key or choose the auto running mode by remote control, it will fix its
running mode by judging room temperature (see below table):
Indoor temp.
Indoor temp.20
ć
20
ć˘
indoor
˘
25
ć
indoor25
ć
Running mode heating fan cooling
St d d fi d
20
ć
22
ć
25
ć
St
an
d
ar
d
fi
xe
d
setting temperature
20
ć
22
ć
25
ć
Note:
1. When Auto mode is selected, unit would check room temperature first and work with fixed mode
as
above accordingly. Every 6 minutes, unit would check room temperature again, running mode would
b
e changed according with update room temperatur
e.
2
If working mode is changed by remote control unit has 3 minutes delay protection for compressor
2
.
If
working
mode
is
changed
by
remote
control
,
unit
has
3
minutes
delay
protection
for
compressor
.
3.
Fan speed selection: For Dry mode, fan speed is fixed with low speed. For Cooling, Heating
and Fan
mode, fan would work with set speed.
4. Unit has protection function, including 3 minutes delay function, Anti-cold function before heating,
Over heating protection during heating function, Anti-frozen during cooling mode, E1,E2,E3,E4
protection.